Read pp 183-193 and 195-197, Technique 15, in TOC. The theory and technique
of the purification of solid compounds by recrystallization is fully explained in these pages. View a video about this technique at bcs.whfreeman.com/mohrig3e. Select Movies and Spectra, then choose Williamson movies followed by 5.3 Recrystallization (Macroscale). Read also pp 49-50 (6.1) to learn about boiling stones and sticks, and page 52 to review the use of hot plates for heating flat-bottomed containers.